RPM's / Shifting question.
Senior Member
Joined: Apr 2002
Posts: 672
Likes: 0
From: Houston, Texas
Car: 1989 GTA Nighthawk
Engine: 389 CID TPI
Transmission: TCI 700R4
Axle/Gears: 9 bolt 3.23
It's adjustable, so it depends on where you have it adjusted to shift at. Probably 5000 would be good, Im not sure of the HP peak on your engine, you typically want to shift about 100 rpm over the HP peak.
Thread
Thread Starter
Forum
Replies
Last Post